Close-up of a tiger sleeping with its head resting on its paw. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3297236/free-photo-image-tiger-sleeping-animalFree Image from public domain licenseClose-up of a tabby cat lying on its back on a white blanket. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3297092/free-photo-image-cat-kitten-picture-animalFree Image from public domain licenseA female lion standing on a ledge in a threatening pose. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3297037/free-photo-image-animal-africa-animals-images-picturesFree Image from public domain licenseA female lion resting on a rock. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3298830/free-photo-image-tiger-nature-animalFree Image from public domain licenseBaby fox beside a tangle of vines and branches and mossy rocks. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3288266/free-photo-image-animal-nature-canineFree Image from public domain licenseWoman holding skull in Halloween. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3302683/free-photo-image-pumpkin-animal-antelopeFree Image from public domain licenseClose-up of a blue-eyed hairless hairless cat. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3300685/free-photo-image-dog-cat-animalFree Image from public domain licenseTwo orang-utans wearing clothes and drinking tea. Coloured lithograph by Day & Haghe after W Hawkins. https://www.rawpixel.com/image/13952785/image-cartoon-face-personFree Image from public domain licenseClose-up tiger head resting in the shade. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3298329/free-photo-image-tiger-animal-cc0Free Image from public domain licenseGray cat with yellow eyes sits in window of old building with rusted bars and brick. Original public domain image from… https://www.rawpixel.com/image/3302703/free-photo-image-cat-black-abyssinianFree Image from public domain licenseA silhouette of a large palm tree, with others in the distance, at sunset. Original public domain image from Wikimedia… https://www.rawpixel.com/image/3301541/free-photo-image-palm-tree-sunset-trees-phoenixFree Image from public domain licenseClose up of a gray fox's face drawing. Original public domain image from Flickr https://www.rawpixel.com/image/3399599/free-photo-image-wolf-illustration-art-dogFree Image from public domain licenseDogs and all about them (1910) photograph art by Robert Leighton. Original public domain image from Wikimedia Commons.… https://www.rawpixel.com/image/11493460/photo-image-dog-face-personFree Image from public domain licenseHorse in Orick, California. Original image from Carol M. Highsmith’s America, Library of Congress collection.… https://www.rawpixel.com/image/433751/horses-fieldFree Image from public domain licenseCute lying yorkshire terrier's close up face shot. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3338510/free-photo-image-animal-canine-cc0Free Image from public domain licenseCat sitting on rolled out audiotape. Original public domain image from Flickr https://www.rawpixel.com/image/3584187/free-photo-image-laptop-cat-cassette-70sFree Image from public domain licenseClose up white cat with eyes of different colors. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3340980/free-photo-image-angora-animal-catFree Image from public domain licenseBlack and white shot of elephant. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3298486/free-photo-image-elephant-texture-black-background-animalFree Image from public domain licenseMan kust de hand van een vrouw in jurk voor een spiegel (c. 1900 - c. 1950) by anonymous https://www.rawpixel.com/image/13739473/image-paper-horse-cartoonFree Image from public domain licenseMale lion with mane in wild yawning showing big teeth. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3298076/free-photo-image-animal-lion-south-africaFree Image from public domain licenseClose up shot of a brown puppy lying down. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3290317/free-photo-image-lay-down-animal-animals-images-picturesFree Image from public domain licenseWalking mountain lion colored pencil drawing. Original public domain image from Flickr https://www.rawpixel.com/image/3399659/free-photo-image-animal-arts-canineFree Image from public domain licenseFox walking on dried grass. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3297813/free-photo-image-fox-animal-canineFree Image from public domain licenseA ghostly skeleton trying to strangle a sick child; representing diphtheria. Watercolour by R. Cooper. https://www.rawpixel.com/image/13966229/image-cat-face-personFree Image from public domain licenseBlack dog lying on sand with a ball. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3299974/free-photo-image-animal-animals-images-pictures-ballFree Image from public domain licenseHistorical images of man riding a horse. Original public domain image from Flickr https://www.rawpixel.com/image/3306196/free-photo-image-horse-animals-public-domain-black-whiteFree Image from public domain licenseFree black chihuahua dog wearing purple shirt image, public domain animal CC0 photo. https://www.rawpixel.com/image/5906450/photo-image-background-public-domain-shirtFree Image from public domain licenseFree sheep standing on grass field image, public domain animal CC0 photo. https://www.rawpixel.com/image/5920174/photo-image-background-public-domain-greenFree Image from public domain licenseYorkshire terrier sitting on tile floor. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3337791/free-photo-image-dog-animal-canineFree Image from public domain licenseBlack and white elephants in water. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3298370/free-photo-image-turtle-sea-animals-elephantFree Image from public domain licenseStanding elegant husky, close up face shot. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3372340/free-photo-image-husky-dog-animal-canineFree Image from public domain licenseA tabby cat sitting next to a flag with a cartoon astronaut cat picture. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3299206/free-photo-image-cat-cute-animals-background-birchFree Image from public domain licenseMan at the bar on Saturday night. Craigville, Minnesota by Russell Lee. Sourced from the Library of Congress. https://www.rawpixel.com/image/12108949/image-face-cat-handFree Image from public domain licenseIllustration from "The little folks of animal land". Inscription below image: "Rosie was a patient model." https://www.rawpixel.com/image/9975275/photo-image-dog-cat-artFree Image from public domain licenseWalla Walla County, Washington. Farmer and the mules which pull the combine through the wheat fields by Russell Lee https://www.rawpixel.com/image/12109105/image-person-art-horseFree Image from public domain licenseA dolphin's dorsal fin cuts through the water in the Launch Complex 39 Area turn basin at NASA's Kennedy Space Center.… https://www.rawpixel.com/image/439890/dolphin-sealifeFree Image from public domain licenseA brown fluffy dog sitting on the beach. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3296602/free-photo-image-dog-golden-retriever-sunFree Image from public domain licenseSmall monkey covering mouth. Dominican Republic. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3287171/free-photo-image-animal-monkey-amazedFree Image from public domain licenseThe State of Texas raises longhorn cattle at Abilene State Historical Park on the site of old Fort Griffin. Original image… https://www.rawpixel.com/image/433874/cattle-farmFree Image from public domain licenseFrench bulldog biting small Christmas present. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3340731/free-photo-image-creative-dog-animalFree Image from public domain licenseA person stroking a small white yawning dog on a sofa. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3297214/free-photo-image-dog-playing-pet-human-and-cat-images-picturesFree Image from public domain licenseOrange cat winks while sitting on a woman's lap. Original public domain image from Flickr https://www.rawpixel.com/image/3372567/free-photo-image-animal-cat-cc0Free Image from public domain licenseZebra stripes close up, black and white. Original public domain image from Flickr https://www.rawpixel.com/image/4025132/photo-image-black-and-white-animalFree Image from public domain licenseStray dog sitting on the edge of the bridge with sea background. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3288669/free-photo-image-dog-sit-adorable-animalFree Image from public domain licenseFree cow standing on grass field image, public domain animal CC0 photo. https://www.rawpixel.com/image/5919566/photo-image-background-public-domain-greenFree Image from public domain licenseA tiger sitting with rock mountain background. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3296849/free-photo-image-tiger-animal-catsFree Image from public domain licenseGolden retriever puppy sitting in grass field. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3299566/free-photo-image-dog-animal-canineFree Image from public domain licenseA pug wrapped in furry blanket. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3305090/free-photo-image-pug-dog-animalFree Image from public domain licenseTwo monkeys nuzzle one another affectionately against a black background in Pollachi. Original public domain image from… https://www.rawpixel.com/image/3283321/free-photo-image-monkey-two-animals-animalFree Image from public domain licenseMaudits. Bonbons!Collection:Images from the History of Medicine (IHM) Author(s):Gaudissart, artist Publication:Paris.: , [18… https://www.rawpixel.com/image/9647177/image-face-person-medicineFree Image from public domain licenseYearlings on a ranch in Red River County near Detroit, Texas. Original image from Carol M. Highsmith’s America… https://www.rawpixel.com/image/433747/horses-fieldFree Image from public domain licenseFree black labrador retriever dog image, public domain animal CC0 photo. https://www.rawpixel.com/image/5924049/photo-image-background-public-domain-dogFree Image from public domain licenseIllustration from "The little folks of animal land". Inscription below image: "Mr. Fourpaw was lucky." (1915) animal art by… https://www.rawpixel.com/image/11493484/photo-image-face-person-artFree Image from public domain licenseClose up brown dog face. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3298622/free-photo-image-portugal-albufeira-animalFree Image from public domain licenseFurry cat with collar and bell yawning showing sharp teeth against black background. Original public domain image from… https://www.rawpixel.com/image/3296939/free-photo-image-dogs-cat-abyssinianFree Image from public domain licenseFree cow standing on grass field image, public domain animal CC0 photo. https://www.rawpixel.com/image/5921993/photo-image-background-public-domain-greenFree Image from public domain licenseAndromeda Chained to the Rock by Sir Anthony van Dyck Antwerp 1599 1641 active England London https://www.rawpixel.com/image/11922894/image-face-cat-personFree Image from public domain licenseMedici lion, sculpture in Florence, Italy. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3340948/free-photo-image-statue-animal-archaeologyFree Image from public domain licenseCalf roping at Cheyenne, Wyoming's, annual Frontier Days rodeo. Original image from Carol M. Highsmith’s America… https://www.rawpixel.com/image/582726/carol-highsmiths-wyoming-photographFree Image from public domain licenseTabby cat yawning close-up shot. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3288737/free-photo-image-cat-teeth-animalFree Image from public domain licenseHusky standing in scenic background. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3303633/free-photo-image-wolf-dog-hill-german-shepherdFree Image from public domain licenseFree zebras and giraffes in the wild image, public domain animal CC0 photo. https://www.rawpixel.com/image/5921836/photo-image-public-domain-green-natureFree Image from public domain licenseBack view of orange cat sitting on pavement. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3297408/free-photo-image-cat-garden-abyssinianFree Image from public domain licenseGodzilla King of the Monsters (1956) photograph art by Jewell Enterprises Inc. Original public domain image from Wikimedia… https://www.rawpixel.com/image/11555734/photo-image-person-art-fireFree Image from public domain licenseJellyfish on black background. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3297574/free-photo-image-jellyfish-animal-cc0Free Image from public domain licenseA dog standing on a log in a forest called Lover's Lane. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3296782/free-photo-image-shiba-inu-dog-lovers-animals-and-petsFree Image from public domain licenseA monkey looking at camera. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3301810/free-photo-image-animal-baboon-canineFree Image from public domain licenseBulldog lying on the ground with leash. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3303619/free-photo-image-cat-bulldog-animalFree Image from public domain licenseMale lion with scruffy mane and grass in background. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3296904/free-photo-image-king-animal-lionFree Image from public domain licenseBlack and white dog smiling at the camera. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3293610/free-photo-image-cute-dog-alleyFree Image from public domain licenseJ & P. Coats Best Six Cord, 200 yds, 50 (1870–1900) chromolithograph art. Original public domain image from Digital… https://www.rawpixel.com/image/10184789/image-dog-face-personFree Image from public domain license